BIOLOGY MIDDLE SCHOOL

Organisms at the bottom of the pyramid produce enough usable chemical energy to support the entire ecosystem through

Answers

Answer 1
Answer:

Answer:

Photosynthesis

Explanation:

The producers represent the first trophic level in an ecosystem. They include all autotrophic organisms. By using their photosynthetic pigments they trap light energy and convert it into chemical energy. They do so through photosynthesis, taking up carbon dioxide and water from the environment. Producers are a source of energy for all other living organisms.

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Light is a form of what type of energy

Answers

Radiant Energy is electromagnetic energy that travels in transverse waves. Radiant energy includes visible light, x-rays, gamma rays and radio waves. Light is one type of radiant energy. Solar energy is an example of radiant energy.
Radiant Energy I don't really have an explanation. Sorry about that but I hope this helped anyways! :)

Why don't human cells have cell walls

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Because Human Cell's cell membrane does the Cell Wall's job as well as determine what goes in and what come out. Unlike the animal cell, the Plant Cell's cell membrane can only do one job at a time, so it has the Cell wall to do the job of keeping the cells shape and structure.

How does having a diverse gene pool help a species survive

Answers

So that there is more gene variation. Let's say if they all had the same genes, one specific disease would be fatal for the species' existence since they would all be the same. The diverse gene pool allows species to develop different characteristics that can help them defend against disease

Please help me!!!A boater is floating 1060 meters down a river. The person takes 40 minutes. At what speed is the boat moving?

Answers

theAnswer is :

it is moving at 26.5 mph

Explanation
26.5 meters per minute

A(n) _____ is an abbreviation for the name of an element and has either one or two letters.1.) atomic mass
2.) chemical symbol
3.) nuclear fusion
4.) periodic table
5.) group
6.) plasma

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This is refered to as the chemical symbol. It is derived from the Latin name for the element which is why some elements like potassium (K) and sodium (N) have symbols different from their name on the periodic table.

What is a group of cells called

Answers

A group of cells are called organ tissue. The way an organism is created is by the following:-

Atoms ----> Molecules -----> Macro molecules -------> Cells ------> Organ tissue -----> Organs -----> Organism  

Good Luck! :P
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Which two organs help animals break down and digest food?A. Lungs B. Stomach C. Midgut D. Gills